Journal of Orthopaedic Surgery and Research

Table 3 Parameters of medullary canal for DDH and control groups

From: Three-dimensional morphological study of the proximal femur in Crowe type IV developmental dysplasia of the hip

	ML width				AP width				D
	IVa	IVb	p	Normal	IVa	IVb	p	Normal	IVa	IVb	p	Normal
C₊₂₀	28.81 ± 4.07^##	42.09 ± 6.99^#	0.000**	50.05 ± 4.73	26.46 ± 4.38^##	29.99 ± 3.95^##	0.001**	34.40 ± 3.18	21.73 ± 3.76^##	23.79 ± 2.05^##	0.01**	29.87 ± 2.27
C₊₁₀	22.97 ± 5.58^##	29.84 ± 8.1^##	0.000**	35.51 ± 3.70	23.42 ± 3.82^##	26.29 ± 3.78^##	0.007**	30.74 ± 3.46	19.39 ± 3.03^##	21.77 ± 2.77^##	0.006**	26.77 ± 3.21
C₀	16.68 ± 3.80^##	23.71 ± 8.39^##	0.000**	27.66 ± 3.08	20.48 ± 4.23^##	23.30 ± 4.22^##	0.034*	29.54 ± 5.35	15.77 ± 3.16^##	18.38 ± 2.69^##	0.002**	22.87 ± 3.02
C₋₁₀	13.23 ± 3.44^##	17.73 ± 4.57^##	0.000**	22.32 ± 2.86	16.55 ± 4.05^##	18.62 ± 2.84^##	0.117	24.11 ± 4.98	12.52 ± 3.08^##	15.74 ± 2.52^##	0.000**	19.80 ± 2.85
C₋₂₀	11.33 ± 3.37^##	14.95 ± 3.70^##	0.002**	19.10 ± 2.46	14.04 ± 3.42^##	15.75 ± 2.02^##	0.046*	18.75 ± 3.32	10.76 ± 2.89^##	13.33 ± 2.52^##	0.001**	17.77 ± 2.64
C₋₃₀	10.38 ± 2.70^##	13.46 ± 3.10^##	0.000**	16.91 ± 2.48	12.68 ± 3.28^##	14.18 ± 2.30^#	0.049*	16.05 ± 2.38	9.90 ± 2.67^##	11.83 ± 2.11^##	0.005**	15.69 ± 2.38
C₋₄₀	10.56 ± 2.96^##	12.67 ± 2.97^##	0.008**	15.19 ± 2.33	12.38 ± 3.09^##	13.09 ± 2.27^#	0.324	14.53 ± 2.23	9.55 ± 2.57^##	10.80 ± 2.08^##	0.051	14.06 ± 2.08
C_i	9.89 ± 2.48^##	10.48 ± 1.89^##	0.724	12.79 ± 1.80	11.13 ± 2.84^##	11.47 ± 2.08^#	0.598	12.79 ± 1.80	8.51 ± 1.98^##	9.31 ± 2.12^#	0.126	10.5 ± 1.41

Values are presented as the mean and the standard deviation; p means the differences between type IVa and type IVb DDH; *p < 0.05, **p < 0.01 for the comparison between the DDH groups; ^#p < 0.05, ^##p < 0.01, when compared with control group
ML width mediolateral width, AP width anteroposterior width, D diameter of best-fitting circle

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ISSN: 1749-799X

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